CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

A vulnerability classified as critical was found in Cisco IOS 15.2(04)M/15.4(03)M (Router Operating System). This vulnerability affects an unknown code block of the component Virtual PPP Interface ACL. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Cisco IOS 15.2(04)M and 15.4(03)M lets physical-interface ACLs supersede virtual PPP interface ACLs, which allows remote authenticated users to bypass intended network-traffic restrictions in opportunistic circumstances by using PPP, aka Bug ID CSCur61303.

The weakness was published 11/14/2015 with Cisco as CSCur61303 as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability was named CVE-2015-6365 since 08/17/2015. The attack can be initiated remotely. The requirement for exploitation is a single authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 86950 (Cisco IOS Virtual PPP Interfaces Security Bypass), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43049 (Cisco IOS Virtual PPP Interfaces Security Bypass Vulnerability (cisco-sa-20151112-ios1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (86950), SecurityFocus (BID 77583†) and Vulnerability Center (SBV-54393†).

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• IOS

Version

• 15.2(04)M
• 15.4(03)M

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 86950
Nessus Name: Cisco IOS Virtual PPP Interfaces Security Bypass
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco IOS Software Virtual PPP Interfaces Security Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
11/13/2015 +88 days 🔍
11/13/2015 +0 days 🔍
11/13/2015 +0 days 🔍
11/13/2015 +0 days 🔍
11/14/2015 +1 days 🔍
11/15/2015 +1 days 🔍
11/16/2015 +1 days 🔍
11/19/2015 +3 days 🔍
11/18/2024 +3287 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCur61303
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-6365 (🔍)
OVAL: 🔍

SecurityFocus: 77583 - Cisco IOS Software CVE-2015-6365 Security Bypass Vulnerability
SecurityTracker: 1034158
Vulnerability Center: 54393 - [cisco-sa-20151112-ios1] Cisco IOS 15.2(04)M and 15.4(03)M Remote Bypass Restrictions via Virtual PPP, Medium

Entryinfo

Created: 11/16/2015 10:01 AM
Updated: 11/18/2024 09:46 AM
Changes: 11/16/2015 10:01 AM (58), 04/12/2018 05:09 PM (17), 06/27/2022 01:17 PM (3), 11/18/2024 09:46 AM (16)
Complete: 🔍
Cache ID: 18:011:40

Discussion

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